A45D 20/18
Flexible caps with provision for hot air supply
A45D20/18 (Flexible caps with provision for hot air supply) appears on 37 US grants and 32 published applications in this corpus.
Search patents in A45D- Granted patents
- 37
- Published applications
- 32
- Assignees
- 12
- Inventors
- 60
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 2 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 2 |
| 2009 | 0 | 1 |
| 2010 | 2 | 2 |
| 2011 | 1 | 1 |
| 2012 | 2 | 4 |
| 2013 | 3 | 1 |
| 2014 | 2 | 1 |
| 2015 | 0 | 3 |
| 2016 | 1 | 2 |
| 2017 | 0 | 2 |
| 2018 | 2 | 3 |
| 2019 | 0 | 1 |
| 2020 | 0 | 1 |
| 2021 | 2 | 0 |
| 2022 | 3 | 2 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Apparatus for hair cooling and dehumidification3 Mar 2026US 12,564,254 B2
- Heat protection garment and methods of use thereof15 Oct 2024US 12,114,721 B2
- Hair dryer with scent dispenser22 Nov 2022US 11,503,891 B1Giftedness and Creativity Company
- Apparatus for hair cooling and dehumidification2 Aug 2022US 11,399,612 B2
- Hair drying net and turban towel17 May 2022US 11,330,885 B2
- Portable hairstyler drying bonnet26 Feb 2026US 2026/0053251 A1
- Apparatus for hair cooling and dehumidification23 Mar 2023US 2023/0090816 A1Tight & Right Hair Revolution, Inc.
- Heat protection garment and methods of use thereof1 Dec 2022US 2022/0378137 A1
- Hair drying net and turban towel3 Mar 2022US 2022/0061489 A9
- Hair-drying hood and hair treatment device including the same17 Dec 2020US 2020/0390218 A1
Most cited
By later US patents
- Hair dryer43US 3,986,272 ARotel AG · 1976
- Portable hair dryer system with rechargeable battery pack27US 5,787,601 A1998
- Organic containing sludge to fertilizer alkaline conversion process26US 7,662,206 B2VitAg Corporation · 2010
- Organic fertilizer made by alkaline conversion process23US 7,947,105 B2VitAg Corporation · 2011
- Hands-free hair dryer22US 5,651,190 A1997